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About
C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
x
:
.
o
wr
Extensions
1→N→G→Q→1 with N=
C
11
and Q=
D
20
Direct product G=NxQ with N=
C
11
and Q=
D
20
d
ρ
Label
ID
C
11
xD
20
220
2
C11xD20
440,31
Semidirect products G=N:Q with N=
C
11
and Q=
D
20
extension
φ:Q→Aut N
d
ρ
Label
ID
C
11
:
1
D
20
=
D
220
φ:
D
20
/
C
20
→
C
2
⊆ Aut
C
11
220
2+
C11:1D20
440,36
C
11
:
2
D
20
=
C
11
:D
20
φ:
D
20
/
D
10
→
C
2
⊆ Aut
C
11
220
4+
C11:2D20
440,22
x
:
Z
F
o
wr
Q
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